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RJ12 to DB9 RS232 Serial Electrical Wire USB Adapter for Industrial Controller

RJ12 to DB9 RS232 Serial Electrical Wire USB Adapter for Industrial Controller

This customized cross-interface data conversion cable connects standard 6P4C RJ12 modular plug and DB9 female serial port, designed for RS232 low-speed serial data transmission between barcode scanners, supermarket cash registers and industrial PLC controllers. The integrated molded strain relief at both ends effectively prevents wire breakage from frequent plugging and daily handling vibration. Shielded multi-core internal wire suppresses electromagnetic interference to guarantee stable data upload without garbled codes, fully compatible with supermarket POS cash systems, industrial serial port acquisition modules and fixed barcode scanning equipment. All materials comply with RoHS standards, customizable cable length, pin assignment mapping and shield structure are available, widely used for retail cash register scanning data transmission, small industrial controller serial communication and desktop measurement instrument signal bridging.

Model:
RJ12 to DB9
Brand:
huamao

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RJ12 to DB9 Connector Cable USB Adapter Cable Industrial Controller Wire Harness Supermarket Cash Register Wire Harness

Product Description

Developed to solve the interface mismatch problem between RJ12 scanner signal output and DB9 serial port industrial control/cash register equipment, the dual-end one-piece injection molding process eliminates loose contact failures caused by split assembly. The flange mounting holes on the DB9 port allow permanent screw fixing on equipment panels, preventing data interruption caused by accidental cable pulling in busy supermarket checkout and factory workshop environments. Twisted internal core layout reduces signal crosstalk, while optional full shielding effectively eliminates data garbling interference generated by industrial motors and switching power supplies nearby. Corrugated reinforced tail at both connector outlets disperses bending tension from frequent plugging and swinging, extending service life in high-frequency use commercial scenarios.

Every finished communication harness passes strict factory testing before shipment, including serial data transmission stability test, terminal pull retention force test, insulation withstand voltage test and long-time continuous communication aging screening. We supply fixed-length finished data cables and customized pin-definition conversion wiring for barcode scanner manufacturers, retail POS system suppliers and small industrial control equipment factories.

Specifications

Communication Protocol	RS232 serial bidirectional data transmission
Internal Wire Structure	Twisted multi-core signal wire
Wire Gauge	AWG26
Operating Temperature Range	-20℃ to +75℃
Outer Sheath Materia	Wear-resistan flexible black PVC

Advantages

RJ12 to DB9 cross-interface integrated molding design: Directly realize signal interconnection between RJ12 barcode scanners and DB9 serial port cash registers/industrial controllers, eliminate secondary wiring welding and avoid manual wiring signal garbling faults, greatly improve retail and industrial equipment assembly efficiency.
DB9 flange screw fixed anti-loose structure: Reserved mounting holes on the serial port shell can be locked on equipment panels with screws, compared with ordinary snap-on DB9 plugs, it completely avoids data transmission interruption caused by accidental pulling in high-traffic supermarket checkout counters and vibrating factory workshops.
Dual-end corrugated strain relief anti-break protection: Injection molded wave-shaped reinforced tail at both RJ12 and DB9 wire outlets disperses repeated bending stress generated by daily plugging and cable swinging, solving the common failure of wire core fracture at connector roots after long-term high-frequency use.
Optional full aluminum foil anti-interference shielding wire: Twisted pair internal core + full foil shielding layer filters electromagnetic interference from cash register power adapters, industrial servo motors and frequency converters, ensuring error-free stable barcode data upload without garbled characters.
Wide compatibility with retail & small industrial equipment: Matches most mainstream supermarket POS cash register systems, fixed barcode scanners and miniature PLC serial control modules on the market, one cable covers retail checkout and small factory serial signal collection dual scenarios.
Commercial & industrial dual-purpose flexible customization service: Support short 1m desktop cash register wiring and 10m long-distance industrial workshop equipment extension cables, small batch prototype sample orders available for scanner and POS system new product development verification.

Application

Supermarket Retail POS Cash Register Systems:Supermarket fixed barcode scanner RJ12-DB9 data transmission cable, convenience store POS cash register serial communication harness, retail weighing scale serial signal connecting wire, mall self-checkout scanner data conversion assembly
Small Industrial PLC & Serial Control Equipment:Desktop miniature PLC controller barcode scanner signal cable, factory workshop serial data acquisition module RS232 conversion harness, automated packaging machine serial port sensor connecting wire, small logistics sorting machine scanning data transmission wire
Laboratory & Desktop Measurement Test Instruments:Desktop electronic balance serial data upload cable, laboratory environmental detector RS232 communication harness, portable industrial thickness gauge DB9 signal connecting wire, bench power supply parameter reading conversion cable
Warehouse Logistics Barcode Scanning Equipment:Warehouse fixed code scanner serial port data harness, logistics inventory checking machine RJ12 conversion cable, storage rack barcode reading equipment long-distance communication wiring assembly
Office & Small Commercial Intelligent Equipment:Printing shop desktop scanner serial communication wire, hotel front desk check-in terminal code scanning data cable, small factory workshop monitoring equipment serial signal connecting harness

FAQ

Q1: What communication standard does this RJ12 to DB9 cable support?

A: It adopts RS232 serial communication protocol, bidirectional transmission of barcode scanning data, compatible with most POS cash registers and small industrial controllers with DB9 serial port.

Q2: What is the function of the flange holes on the DB9 connector?

A: The two reserved mounting flange holes can fix the DB9 port on the equipment panel with screws, prevent the connector from falling off and data interruption caused by accidental pulling of the cable in busy checkout and vibrating workshop environments.

Q3: Can this cable resist electromagnetic interference from industrial motors?

A: We support custom single-layer aluminum foil full shielding internal wire, which can effectively isolate interference signals generated by industrial frequency converters and servo motors to avoid garbled scanning data.

Q4: Can the pin sequence of RJ12 and DB9 be customized?

A: Yes, we can adjust the one-to-one pin mapping between RJ12 crystal head and DB9 serial port according to customer equipment circuit schematic to match special communication signal definition requirements.